A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6130-01-106-3462
NSN 6685-01-471-7203
NSN 6320-01-170-4068
NSN 6220-01-214-0270
NSN 6320-01-434-3049
NSN 7035-01-619-1268
NSN 6105-01-254-2722
NSN 5990-01-349-8132
NSN 5965-01-024-7960
NSN 6650-01-541-3329
NSN 5960-01-641-5493
NSN 5999-01-333-7349